Sunstreaker was one of the first generation of Autobots in the original Transformers television series. He was the twin brother of Sideswipe, another Autobot, and like him also turned into a Lamborghini Countach. His alternate mode however, was yellow and had a modification in the form of an engine that sticks out the back. He was described as the ultimate egotist, being notoriously difficult to work with and pair up with anyone else besides Sideswipe, and described himself as the most beautiful thing ever and Cybertron's greatest warrior. He was also a cold, ruthless and effective fighter who would do anything to win.